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M. G; GILLETTE.

Tap-Valve.

Patented Mar. 16, 1880 yaw;

Znesse.

Inventor,

NPEFEBS. PHOTO-LITEQGRAPQIER. WASHINGTON. D. Cv

UNITED STATES PATENT OFFICE.

MOTT G. GILLETTE, OF NEW YORK, N. Y., ASSIGNOIt TO CHARLES Gr. SINGER, OF SAME PLACE.

TAP-VALVE.

SPECIFICATION forming part of Letters Patent No. 225,471, dated March 16, 1880. Application filed October 18, 1879.

To all whom it may concern Be it known that 1, Mom: G. GILLETTE, of New York, county and State of New York, have invented certain new and useful Iniprovements in Tap Valves, of which the following is a specification.

This invention relates to that class of valves which are placed inside casks and barrels to close the tap-hole, and which are opened by the tap when it is inserted in the hole, and known as tap-valves. It has for its object to overcome the objections attending the use of flap-valves for this purpose; and it consists First, in elongating the holes by means of which the flap is pivoted to the body of the valve, so that as the flap is pushed away from the valve-face by the end of the tap coming in contact with its center, when the tap is passed through the hole in the cask or barrel head, it leaves the valve-face in a parallel direction until the pivot-rod comes in contact with the ends of the elongated holes of the flap, which then swings round on the rod to allow theend of the tap to slide beyond its face. On withdrawing the tap from the cask or barrel the I flap is closedby a spring which bears against the center of its back, swinging round on the rod as a fulcrum until it is in closetproximity to the valve-seat, when it is parallel thereto,

and reaches all parts of the surface of the seat atthe same time, thus preventing the rubbing action that takes place between the flaps and valve-seats of all flap-valves heretofore made, said rubbing action being due to the different angular velocities of the various parts of the flap as they come in contact with the seat.

Secondly, to insure a perfectly tight joint between the body of the valve and the barrelhead, to which it is attached by screws, I provide it on the under side with two concentric raised beads or projections, between which the screw-holes are placed, said concentric raised projections pressing into the wood of the head or into a rubber washer which I generally place between them, thus-preventin g any leakage between these surfaces.

But to describe my invention more particularly, I willrefer to the accompanying drawings, forming part of this specification, in which- Figure l is a perspective view of my improved tap-valve. Fig. 2 is a sectional view,

showing it attached to a cask or barrel head; and Fig. 3 is a view of the under side of the valve, showing the concentric raised projections.

The body a of the valve is aflat ring, around the central hole of which is the raised seat b, and it is provided with two ears or lugs, c 0, having holes, in which the rod (1 fits. This rod 01 also passes through the elongated holes in the two arms 0 6,01 the flap f, as clearly shown in Fig. 1. The face of the tlap f is provided with a disk of'rubber, held thereto by the large round-head rivet g, and it is held against the valve-seat b by the spiral spring h surrounding the rod (1 between the ears or lugs c 0. The free ends of this spring it rest against the edge of the hotly a, and its central portion is bent so as to bear against the back of the flap at its center, as shown.

i represents a portion of the head of a cask or barrel, and 1; the tap-hole. The body a of the valve is secured to the head i concentric with the hole 71 by means of screws j. On the under side of the body a, just outside and inside the holes through which the screws j pass, are formed the concentric raised projections a a, which press into the rubber packing-ring placed between the wood and the body of the valve, and thus obviate any chance of leakage occurring in this joint. This allows me to make the body a very light, and to secure it in place with but few screws, thus cheapening the production and application of the valve.

On tapping a cask or barrel provided with this valve the end of the tap, after passing A through the hole i, comes in contact with the round-head rivet g of the flap f, pushes the flap away from the seat I) in a parallel direction, and it thus leaves the seat without any rubbing action until the ends of the elongated holes in the arms 0 0 come in contact with the rod (1, when it swings on the rod as afulcrum. The reverse action takes place when the tap is withdrawn from the hole 6.

Having now described my invention, I wish it understood that I do not claim, broadly, a flap-valve applied to the inside of a cask and side of the screw-holes, by which it is secured in place, substantially as and for the purpose set forth.

3. In a flap-valve, in combination, the body (it, provided with the concentric raised projections at a, with the flap f, connected thereto by the rod d passing through the elongated holes of the said flap, substantially as and for the purposes set forth.

In testimony whereof I have hereunto set my hand this 16th day of October, A. D. 1879.

MOTl G. GILLETTE.

Witnesses:

CHAS. G. SINGER, KING 6. GILLETTE. 

